6578152: fill_region_with_object has usability and safety issues
Reviewed-by: apetrusenko, ysr
/*
* Copyright 1997-2002 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
// A klassOop is the C++ equivalent of a Java class.
// Part of a klassOopDesc is a Klass which handle the
// dispatching for the C++ method calls.
// klassOop object layout:
// [header ]
// [klass_field]
// [KLASS ]
class klassOopDesc : public oopDesc {
public:
// size operation
static int header_size() { return sizeof(klassOopDesc)/HeapWordSize; }
// support for code generation
static int klass_part_offset_in_bytes() { return sizeof(klassOopDesc); }
// returns the Klass part containing dispatching behavior
Klass* klass_part() { return (Klass*)((address)this + klass_part_offset_in_bytes()); }
};